A236448 - OEIS

%I #6 Mar 08 2023 11:53:07

%S 136208,3081484,66621676,1449135596,33053505704,776197082280,

%T 18067929385444,417098720716876,9663226837691844,225960164895003720,

%U 5256657839271798652,121842108056681368004,2828540664921269026932

%N Number of (n+1) X (4+1) 0..3 arrays colored with the difference of the maximum and minimum in each 2 X 2 subblock.

%C Column 4 of A236451.

%H R. H. Hardin, <a href="/A236448/b236448.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=1

%e ..0..2..2..3..0....2..0..3..3..0....0..0..1..1..0....1..3..3..2..2

%e ..2..2..2..3..0....0..2..1..3..2....0..0..2..2..2....2..3..2..0..2

%Y Cf. A236451.

%K nonn

%O 1,1

%A _R. H. Hardin_, Jan 26 2014